CN215845667U - Steel ladle cover with three-dimensional frame structure - Google Patents
Steel ladle cover with three-dimensional frame structure Download PDFInfo
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- CN215845667U CN215845667U CN202122078351.2U CN202122078351U CN215845667U CN 215845667 U CN215845667 U CN 215845667U CN 202122078351 U CN202122078351 U CN 202122078351U CN 215845667 U CN215845667 U CN 215845667U
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Abstract
The utility model relates to a steel ladle cover with a three-dimensional frame structure, which comprises a shell and a refractory material; the shell is a frame structure of double-layer steel plates and is provided with an upper cover plate, a lower cover plate, an inner side plate, an outer side plate and an annular plate; the inner side plate and the outer side plate are respectively welded with the upper cover plate, the lower cover plate and the annular plate to form a closed shell with an inner cavity frame; a cover plate reinforcing plate rib is arranged between the upper cover plate and the lower cover plate, and a lateral reinforcing plate rib is uniformly distributed between the inner side plate and the outer side plate; one or a plurality of closed bodies with mutually communicated gases are formed in the closed shell through small holes arranged on the reinforcing plate ribs, and an air suction hole connecting pipe is arranged on an upper cover plate of the shell and is used for being connected with an external vacuum pump through a valve; and a space enclosed by the lower cover plate and the inner side plate is paved with a refractory material, and the lower cover plate fixes the refractory material through a welding stud. The reinforcing plate ribs can effectively enhance the deformation resistance of the shell. The steel ladle cover is simple in structure, light in weight and resistant to deformation, and the interior of the shell can be vacuumized by using the vacuum pump during use, so that the heat conduction loss of the steel ladle cover is effectively reduced.
Description
Technical Field
The utility model relates to a steel ladle cover, in particular to a steel ladle cover with a three-dimensional frame structure, and belongs to the technical field of steel ladles for metallurgy.
Background
The steel ladle is used as a steel container between a steelmaking process and a continuous casting process, and the cold and hot states of the steel ladle in the production turnover process directly influence the change of molten steel temperature in the tapping and steel containing processes, thereby influencing the composition of the molten steel and the cost consumed by steelmaking. Therefore, in the steel-making and continuous casting production process, the maintenance of the ladle temperature of the ladle is an effective measure for improving the quality of steel products and the economic indexes of the steel-making technology.
At present, the problems of long transportation scheduling time, empty ladle and large heat loss of a heavy ladle of an open ladle generally exist in the ladle. Because the distance between the converter and the continuous casting workshop is long, all the steel ladles containing molten steel are empty ladles after the pouring is finished, if no steel ladle cover is added, the empty ladles are directly contacted with the outside air, the high-temperature steel ladles can be rapidly cooled, and a large amount of energy is needed to heat the steel ladles before the steel ladles are used next time, so that the smelting cost is greatly increased. In order to reduce the heat loss of empty and hot ladles during transportation, a wide variety of ladle covers have been designed. At present, a plurality of ladle covers are often designed into steel plate combined structures supported by a steel skeleton, so that the weight is heavier, the volume is large, the deformation resistance is poor, the ladle covers are easy to damage and need frequent maintenance, and meanwhile, the safety performance of the ladle in the operation process is reduced.
Disclosure of Invention
Aiming at the defects in the steel ladle cover technology, the utility model provides the steel ladle cover with the three-dimensional frame structure, which has the advantages of simple and reasonable structure, light weight, small volume, deformation resistance, good safety performance in the operation process and heat preservation effect.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the steel ladle cover with the three-dimensional frame structure comprises a shell, reinforcing plate ribs and a refractory material; the shell comprises an upper cover plate, a lower cover plate, an inner side plate, an outer side plate and an annular plate; the inner side plate and the outer side plate are respectively welded with the upper cover plate, the lower cover plate and the annular plate to form a closed shell with an inner cavity frame; the reinforcing plate ribs are cover plate reinforcing plate ribs arranged between the upper cover plate and the lower cover plate, and lateral reinforcing plate ribs uniformly distributed between the inner side plate and the outer side plate, and small holes are formed in the reinforcing plate ribs; the small holes enable a large enclosed body or a plurality of small enclosed bodies with mutually communicated gases to be formed in the closed shell separated by the reinforcing plate ribs; an air exhaust hole connecting pipe communicated with the inner cavity of the closed body is arranged on the upper cover plate of the shell and is used for being connected with an external vacuum pump through a valve; and a space enclosed by the lower cover plate and the inner side plate is paved with a refractory material, and the lower cover plate fixes the refractory material through a welding stud or an anchoring piece.
And the air exhaust hole connecting pipe arranged on the upper cover plate of the shell is used for connecting an external vacuum-pumping pump through a valve to vacuumize the closed body.
The cover plate reinforcing plate ribs arranged between the upper cover plate and the lower cover plate are net-shaped reinforcing plate ribs.
The cover plate reinforcing plate ribs and the lateral reinforcing plate ribs are respectively fixed with the upper cover plate, the lower cover plate, the inner side plate and the outer side plate through fillet weld welding and used for enhancing the deformation resistance of the shell.
Compared with the prior art, the steel ladle cover with the three-dimensional frame structure has the advantages that:
the steel ladle cover is of a frame structure with double layers of steel plates, adopts a three-dimensional frame structure, aims to reduce the weight of the steel ladle cover, and can effectively reduce the operation load and the occupied space of a steel ladle trolley while effectively enhancing the deformation resistance of the shell.
The shell of the steel ladle cover is a closed shell with an inner cavity frame, a closed body with mutually communicated gases or a plurality of closed bodies with mutually communicated gases are formed in the closed shell, and when the steel ladle and the steel ladle cover have higher requirements on the heat preservation effect, the shell can be vacuumized by utilizing the connecting valve of the air exhaust hole connecting pipe arranged on the upper cover plate and the vacuum pump, so that the interior of the shell is in a vacuum state, the heat conduction performance of the steel ladle cover can be further reduced, and the heat loss of the steel ladle is effectively reduced.
The steel ladle cover is simple and reasonable in structure, light in weight, small in size, resistant to deformation, good in safety performance in the operation process and capable of achieving an excellent heat preservation effect.
Drawings
Fig. 1 is a schematic front view of a ladle covering structure of a three-dimensional frame structure according to the present invention.
FIG. 2 is a schematic top view of the utility model taken from A-A of FIG. 1.
Fig. 3 is a schematic front view of a steel ladle cover structure in embodiment 2 of the present invention.
Fig. 4 is a schematic top view of a steel ladle cover structure according to embodiment 2 of the present invention.
In the above figures: 1-upper cover plate; 2-reinforcing plate ribs of the cover plate; 3, a lower cover plate; 4-connecting pipe of air exhaust hole; 5-inner side plate; 6-outer side plate; 7-refractory material; 8-lateral reinforcing plate ribs; 9-annular plate.
Detailed Description
The ladle cover of the three-dimensional frame structure of the utility model is further detailed in the following with reference to the attached drawings and embodiments. The examples of the present invention are only for illustrating the spirit of the present invention and should not be construed as limiting the present invention.
Example 1: the utility model provides a steel ladle cover with a three-dimensional frame structure, which has the structure shown in figures 1 and 2. The ladle cover comprises a shell, a reinforcing plate rib and a refractory material 7; the shell comprises an upper cover plate 1, a lower cover plate 3, an inner side plate 5, an outer side plate 6 and an annular plate 9; in the embodiment, the diameter of the upper cover plate is larger than that of the lower cover plate, the length of the outer side plate is longer than that of the inner side plate, and only one annular plate is arranged; the inner side plate and the outer side plate are respectively welded with the upper cover plate, the lower cover plate and the annular plate to form a closed shell with an inner cavity frame; the reinforcing plate ribs are formed by arranging a cover plate reinforcing plate rib 2 between an upper cover plate and a lower cover plate and side reinforcing plate ribs 8 uniformly distributed between an inner side plate and an outer side plate; a closed body with gas communicated with each other is formed in the closed shell through small holes arranged on the reinforcing plate ribs; an air exhaust hole connecting pipe 4 communicated with the inner cavity of the shell is arranged on the upper cover plate of the shell and is used for connecting an external vacuum pump through a valve to vacuumize the enclosed body; the fireproof material 7 laid in the space enclosed by the lower cover plate and the inner side plate is made of fireproof fiber, and the lower cover plate fixes the fireproof fiber through a welding stud.
Referring to fig. 2, the cover plate reinforcing plate ribs 2 arranged between the upper cover plate and the lower cover plate are criss-cross mesh reinforcing plate ribs, and when the cover plate reinforcing plate ribs are welded, the longitudinal reinforcing plate ribs can be welded in the upper cover plate, and the transverse reinforcing plate ribs can be welded on the lower cover plate in sections; the net-shaped reinforcing plate ribs are respectively fixed with the upper cover plate and the lower cover plate through fillet weld welding and used for enhancing the strength of the shell so as to improve the deformation resistance of the ladle cover.
When the steel ladle cover is used, the air exhaust port connecting pipe 4 can be connected with a valve and a vacuum pump to vacuumize the steel ladle cover sealing body until the vacuum reaches 1 multiplied by 10-3And Pa is stopped, and the valve is removed after the connecting pipe of the pumping hole is sealed.
The steel ladle cover of the embodiment has the advantages of simple structure, light weight, small volume, strong deformation resistance of the shell and good heat preservation effect.
Example 2: the structure of the steel ladle cover with the three-dimensional frame structure is basically the same as that of the steel ladle cover in the embodiment 1, and an air exhaust hole connecting pipe 4 is also arranged on the upper cover plate 1; a cover plate reinforcing plate rib 2 is welded between the upper cover plate and the lower cover plate; and a lateral reinforcing plate rib 8 is welded between the inner side plate 5 and the outer side plate 6. Except that the diameter of the upper cover plate is the same as that of the lower cover plate, the length of the inner side plate is the same as that of the outer side plate, and the annular plates are 2, namely, the upper annular plate and the lower annular plate. As shown in fig. 3; the upper cover plate, the lower cover plate and the inner side plate 5 form a closed shell through welding, as shown in figure 4, a cover plate reinforcing plate rib arranged between the upper cover plate and the lower cover plate is a net-shaped reinforcing plate rib which is uniformly radiated from the central circle of the ladle cover to the outer circumference of the ladle cover, and small holes are formed in the cover plate reinforcing plate ribs 2, so that the whole closed shell forms a closed body with mutually communicated gases; the inner side plate, the outer side plate and the upper and lower annular plates are welded into a closed shell, and when the sealed shell is used, only the connecting pipe 4 of the air exhaust hole on the upper cover plate is needed to be vacuumized and then the connecting pipe of the air exhaust hole is sealed, so that the closed body formed in the upper and lower cover plates can be ensured to be in a vacuum state when the sealed shell is used.
The steel ladle cover is a three-dimensional frame structure with double layers of steel plates, has simple and reasonable structure, light weight, small volume, strong anti-deformation capability of the shell and good safety performance in the operation process, can further reduce the heat loss of the steel ladle when being used in a vacuum pumping state, and has good heat preservation effect.
Claims (4)
1. A steel ladle cover with a three-dimensional frame structure comprises a shell, reinforcing plate ribs and a refractory material; the method is characterized in that: the shell comprises an upper cover plate, a lower cover plate, an inner side plate, an outer side plate and an annular plate; the inner side plate and the outer side plate are respectively welded with the upper cover plate, the lower cover plate and the annular plate to form a closed shell with an inner cavity frame; the reinforcing plate ribs are cover plate reinforcing plate ribs arranged between the upper cover plate and the lower cover plate, and lateral reinforcing plate ribs uniformly distributed between the inner side plate and the outer side plate, and small holes are formed in the reinforcing plate ribs; the small holes enable a large enclosed body or a plurality of small enclosed bodies with mutually communicated gases to be formed in the closed shell separated by the reinforcing plate ribs; an air exhaust hole connecting pipe communicated with the inner cavity of the closed body is arranged on the upper cover plate of the shell and is used for being connected with an external vacuum pump through a valve; and a space enclosed by the lower cover plate and the inner side plate is paved with a refractory material, and the lower cover plate fixes the refractory material through a welding stud or an anchoring piece.
2. The ladle cover of the space frame structure according to claim 1, wherein: and the air exhaust hole connecting pipe arranged on the upper cover plate of the shell is used for connecting an external vacuum-pumping pump through a valve to vacuumize the large closed body or the small closed body.
3. The ladle cover of the space frame structure according to claim 1, wherein: the reinforcing plate ribs arranged between the upper cover plate and the lower cover plate are net-shaped reinforcing plate ribs.
4. The ladle cover of the space frame structure according to claim 1, wherein: the cover plate reinforcing plate ribs and the lateral reinforcing plate ribs are respectively fixed with the upper cover plate, the lower cover plate, the inner side plate and the outer side plate through fillet weld welding and used for enhancing the deformation resistance of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122078351.2U CN215845667U (en) | 2021-08-31 | 2021-08-31 | Steel ladle cover with three-dimensional frame structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122078351.2U CN215845667U (en) | 2021-08-31 | 2021-08-31 | Steel ladle cover with three-dimensional frame structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215845667U true CN215845667U (en) | 2022-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122078351.2U Active CN215845667U (en) | 2021-08-31 | 2021-08-31 | Steel ladle cover with three-dimensional frame structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215845667U (en) |
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2021
- 2021-08-31 CN CN202122078351.2U patent/CN215845667U/en active Active
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